Thread-cutter.



Jim-853,979. PATENTED MAY 21, 90 7.

- A. KARRER.

THREAD CUTTER.

. APBLIOATION FILED JUNE 6, 190B. RENEWED APR. 13, 1907.

2 BHBETSSHEBT 1.

' ll/i 27168868 n I [Quanta/ f.

I PATENTED MAY 21 1907. A. KARRER. THREAD CUTTER. APPLICATION FILED JUNE6, 1905. RENEWED APR. 13, 1907.

2 SHEETS-SHEET UNITED STATES rnrimr rrion.

, ARMAND KARRER, or ST. JOSEPH, MISSOURI.

THREAD-CUTTER.

NO. 853,979. Specification of Letters Patent. Patented May 21, 1907.

Application filed June 6, 1905. Renewed April 13, 1'90'7. Serial No.368,086.

To all whom it WI/(Ly concern:

Be it known that I, ARMAND KARRER, a citizen of the United States,residing at St. Joseph, in the county of Buchanan and State of Missouri,have invented certain new and useful Improvements in Thread-Cutters andI do declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompany ing drawings, and to the letters and figures of referencemarked thereon, which form a part of this specification.

My invention relates to an improved cutter particularly ada ted forclipping or cutting thread. Myo ject is to provide a device operated bythe thumb and adapted to be carried by the hand as long as neededwithout interfering with the free use of the fingers thereby especiallysuiting it to the use of the large number of operators upon sewingmachines who are employed in manufactories for clothing and otherarticles.

I attain my object by the mechanism illustrated in the accompanyingdrawing, in which Figure 1 is a top view of the thread cutter shown inposition on a hand, with blades parted, a thumb grip and screw pivot anda lug and slot which hold the blades open or shut in the desiredposition; Fig. 2 illustratesa double loop by which the cutter is carriedon the fingers; Fig. 3 is a bottom view of the cutter showing the angleat which the double loop for fingers is set on the handle of the bottomblade; Fig. 4 is a top view of the cutter showing the position of thelug in the slot when the blades are closed; Fig. 5 is a top view of sameshowing position at which the lug engages with the slot to prevent theopening of blades beyond a clipping position; Fig. 6 is a top view ofthe bottom blade' showing the loop and lug thereon; Fig. 7 is a top viewof the top blade showing its thumb grip and slot; Fig. 8 is aperspective of the device showing the precise form of the loop; Fig. 9is an end view of the same; Fig. 10 is a detail of thescrew pivot; Fig.11 is a horizontal section through the pivot and lug, and Fig.

12 is a perspective view showing the lug and slot in one of the handles.

Similar letters refer to similar parts in the several views.

The manner in which a thread cutter is held is illustrated by hands A A.

B is the top and B is the bottom blade of a thread cutter the respectivehandles C and C being at slight angles with their respective blades, asshownv in Figs. 1- and 3. These handles with their blades are held oneach other by a screw pivot D which permits them to be taken apartreadily for sharpening the blades.

On the top blade there is a thumb grip E, this grip consists of oppositeflanges d (1 set adjacent to the cutting part of the blade and whichslope upward at a suitable width apart to receive the thumb that it maycarry the blade back and forth for clipping or cutting the threads.

At the end of handle C there is a lug F which is adapted to engage witha slot H in the end of handle C, said slot being of a width to permit aplay of the lug therein that will allow the blades to open to a widthsubstantially as shown, and that will also prevent the blades passingover each other beyond their normal closed position.

i I is a double loop to receive the ring and little fingers by which thethread cutter is held in position on the hand. It is adapted to setbetween the finger and knuckle joints and bears outward at an angle, asshown in Fig. 3, that will hold thedevice in a position that willconform it to the position of the fingers when the hand is closed forcutting a thread.

This thread cutter does not in any way interfere with the free use ofthe fingers and may therefore be retained on the hand with outinterfering with the work of the operator and be ready at any instantfor the'thumb to engage with the thumb grip and close the blade, therebycutting the thread or other article.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a thread cutter the combination of two blades pivotally connected,one of said blades having thumb engaging flanges, handles on the bladesset at an angle thereto, a loop to receive the finger as for the purposeslot in one handle and a lug in the other hanset forth. 1o dle to entersaid slot and limit the movement In testimony whereof, I my signature,of the blades. in presence of two witnesses.

2. A thread cutter consisting of two blades, ARMAND KARRER. pivotallyconnected handles therefor one Witnesses: provided with a slot at itslower end, the SAMUEL G. MANNsor-mnoic,

other having a lug'to enter said slot and a CHARLES JoNAcH.

